<?php

/**
 * Argument handler to accept a user id to check for nodes that
 * user posted or commented on.
 */
class views_handler_argument_comment_user_uid extends views_handler_argument {

    function title() {
        if (!$this->argument) {
            $title = variable_get('anonymous', t('Anonymous'));
        } else {
            $title = db_result(db_query("SELECT u.name FROM {users} u WHERE u.uid = %d", $this->argument));
        }
        if (empty($title)) {
            return t('No user');
        }

        return check_plain($title);
    }

    function default_actions($which = NULL) {
        // Disallow summary views on this argument.
        if (!$which) {
            $actions = parent::default_actions();
            unset($actions['summary asc']);
            unset($actions['summary desc']);
            return $actions;
        }

        if ($which != 'summary asc' && $which != 'summary desc') {
            return parent::default_actions($which);
        }
    }

    function query() {
        $this->ensure_my_table();
        $this->query->add_where(0, "$this->table_alias.uid = %d OR ((SELECT COUNT(*) FROM {comments} c WHERE c.uid = %d AND c.nid = $this->table_alias.nid) > 0)", $this->argument, $this->argument);
    }

}
